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Anisotropic etching is a widely used process in semiconductor manufacturing, in particular for micro- and nano-scale texturing of silicon surfaces for black silicon production. The typical process of plasma-assisted etching uses energetic…

Chemical Physics · Physics 2023-08-08 Omesh Dhar Dwivedi , Yuri Barsukov , Sierra Jubin , Joseph Vella , Igor Kaganovich

The evolution of beam phase space in ionization-induced injection into plasma wakefields is studied using theory and particle-in-cell (PIC) simulations. The injection process causes special longitudinal and transverse phase mixing leading…

Accelerator Physics · Physics 2015-06-16 X. L. Xu , J. F. Hua , F. Li , C. J. Zhang , L. X. Yan , Y. C. Du , W. H. Huang , H. B. Chen , C. X. Tang , W. Lu , P. Yu , W. An , W. B. Mori , C. Joshi

We investigate the effect of the metallic character of solid substrates on solid-liquid interfacial thermodynamics using molecular simulations. Building on the recent development of a semi-classical Thomas-Fermi model to tune the…

Chemical Physics · Physics 2021-12-14 Laura Scalfi , Benjamin Rotenberg

Ionic polymer-metal composites consist in a thin film of electro-active polymers (Nafion R for example) sandwiched between two metallic electrodes. They can be used as sensors or actuators. The polymer is saturated with water, which causes…

Computational Physics · Physics 2021-01-18 Mireille Tixier , Joël Pouget

A new class of exact electrostatic solutions of the Vlasov-Maxwell equations based on the Jeans's theorem is proposed for studying the evolution and properties of two-dimensional anisotropic plasmas that are far from thermodynamic…

Plasma Physics · Physics 2017-09-06 A. R. Karimov , M. Y. Yu , L. Stenflo

An anisotropic metallic phase dubbed electronic nematic phase bounded by two consecutive metamagnetic transitions has been reported in the bilayer ruthenate Sr3Ru2O7. It has also been shown that the nematic and the accompanying metamagnetic…

Strongly Correlated Electrons · Physics 2015-05-14 Christoph M. Puetter , Jeffrey G. Rau , Hae-Young Kee

Solid-state amorphization of crystalline copper nanolayers embedded in a Cu64Zr36 metallic glass is studied by molecular dynamics simulations for different orientations of the crystalline layer. We show that solid-state amorphization is…

Materials Science · Physics 2015-05-07 Tobias Brink , Daniel Şopu , Karsten Albe

We explore how a magnetic field breaks the symmetry of an initially spherical giant liposome filled with a magnetic colloid. The condition of rotational symmetry along the field axis leads either to a prolate or to an oblate ellipsoid. We…

Soft Condensed Matter · Physics 2019-10-14 O. Sandre , Christine Ménager , J. Prost , V. Cabuil , J. -C. Bacri , A. Cebers

We present a novel method for the simulation of the vibration-induced autoionization dynamics in molecular anions in the framework of the quantum-classical surface hopping approach. Classical trajectories starting from quantum initial…

Chemical Physics · Physics 2023-02-01 Kevin Issler , Roland Mitric , Jens Petersen

The rate of melting of a solid and the rate of deformation of the resulting melt due to capillary forces are comparable in additive manufacturing applications. This dynamic structural change of a melting solid is extremely challenging to…

Computational Physics · Physics 2018-04-18 Michael Blank , Prapanch Nair , Thorsten Pöschel

Impact of single particle onto a rigid substrate leads to its deformation and fragmentation. The flow associated with the particle spreading on a solid substrate after impact is extremely complicated. In this theoretical study a simplified…

Fluid Dynamics · Physics 2021-12-20 Ilia V. Roisman

Vibrational mode frequencies and damping are calculated for an elastic sphere embedded in an infinite, homogeneous, isotropic elastic medium. Anisotropic elasticity of the sphere significantly shifts the frequencies in comparison to…

Materials Science · Physics 2007-05-23 Lucien Saviot , Daniel B Murray , Maria Del Carmen Marco De Lucas

High fraction of the surface atoms considerably enhances the influence of size and shape on the magnetic and electronic properties of nanoparticles. Shape effects in ferromagnetic nanoparticles are well understood and allow to set and…

Mesoscale and Nanoscale Physics · Physics 2013-08-16 H. Gomonay , S. Kondovych , V. Loktev

Elastic waves in anisotropic media can exhibit a power flux that is not collinear with the wave vector. This has notable consequences for waves guided in a plate. Through laser-ultrasonic experiments, we evidence remarkable phenomena due to…

Classical Physics · Physics 2024-01-04 Daniel A. Kiefer , Sylvain Mezil , Claire Prada

We present an ab-initio study of the hybridization of localized surface plasmons in a metal nanoparticle dimer. The atomic structure, which is often neglected in theoretical studies of quantum nanoplasmonics, has a strong impact on the…

Metallic nanoparticles, liquefied by fast laser irradiation, go through a rapid change of shape attempting to minimize their surface energy. The resulting nanodrops may be ejected from the substrate when the mechanisms leading to dewetting…

Fluid Dynamics · Physics 2013-07-18 S. Afkhami , L. Kondic

Employing density functional theory calculations we explore initial stage of competitive alloying of co-deposited silver and indium atoms into a silicon surface. Particularly, we identify respective adsorption positions and activation…

Materials Science · Physics 2023-02-17 D. V. Prodan , G. V. Paradezhenko , D. Yudin , A. A. Pervishko

This study investigates the shock-induced atomisation dynamics of an acoustically levitated TM-10 nanofluid droplet subjected to a coaxially propagating blast wave and subsequent compressible vortex ring, generated using a compact…

Fluid Dynamics · Physics 2025-08-21 Gautham Vadlamudi , Bal Krishan , Akarsh Choudhary , Saptarshi Basu

Selectivity towards positive and negative ions in nanopores is often associated with electroosmotic flow, the control of which is pivotal in several micro-nanofluidic technologies. Selectivity is traditionally understood to be a consequence…

Fluid Dynamics · Physics 2022-04-21 Giovanni Di Muccio , Blasco Morozzo della Rocca , Mauro Chinappi

For a free surface problem of a highly subsonic heat-conducting inviscid flow, motivated by a geometric approach developed by Christodoulou and Lindblad in the study of the free surface problem of incompressible inviscid flows, the a priori…

Analysis of PDEs · Mathematics 2017-09-21 Tao Luo , Huihui Zeng